CN107889384B

CN107889384B - Casing for mounting LED circuit board

Info

Publication number: CN107889384B
Application number: CN201710943874.4A
Authority: CN
Inventors: 张华�; 唐邵柯; 吕光聪
Original assignee: ZHEJIANG YANGMING AUTO PARTS CO Ltd
Current assignee: ZHEJIANG YANGMING AUTO PARTS CO Ltd
Priority date: 2017-10-11
Filing date: 2017-10-11
Publication date: 2020-04-17
Anticipated expiration: 2037-10-11
Also published as: CN107889384A

Abstract

The present invention relates to automotive parts. The utility model provides a casing of installation area LED circuit board, includes lid and box body, lid and box body are the working of plastics, the rear side of lid and the rear side of box body link together through the plastic construction's that can buckle connection piece, lid, box body and connection piece integrated into one piece are in the same place, the front side of box body is equipped with the dop, the front side of lid is equipped with dop complex buckle, the left side wall of box body is equipped with the opening that extends to the diapire from the up end, the left side wall of lid is equipped with and is used for inserting the intraoral extension piece of opening, be equipped with two on the lower terminal surface of extension piece and link up the lead wire mouth of extension piece along left right direction. The invention provides a shell with an LED circuit board, which is characterized in that box bodies and box covers are always connected together and are convenient to thread, and the problems that the existing shell box cover is easy to lose and leads are inconvenient are solved.

Description

Casing for mounting LED circuit board

Technical Field

The invention relates to an automobile part, in particular to a shell provided with an LED circuit board.

Background

The shell is required to be used for mounting the LED circuit board on the automobile. The existing shell is composed of a box cover and a box body which are in a separated state, a buckle is respectively arranged at the front side and the rear side of the box cover and the box body for fixing, and a power line with an LED circuit board is LED out by punching a hole on the wall of the box body. Therefore, the prior shell has the following defects: the box cover is easy to lose after being separated from the box body; it is inconvenient to draw out the power cord.

Disclosure of Invention

The invention provides a casing with an LED circuit board, which is characterized in that box covers of the casing are always connected together and are convenient to thread, and the problems that the existing casing cover is easy to lose and leads are inconvenient are solved.

The technical problem is solved by the following technical scheme: the utility model provides a casing of installation area LED circuit board, includes lid and box body, its characterized in that, lid and box body are the working of plastics, the rear side of lid and the rear side of box body link together through the plastic construction's that can buckle connection piece, lid, box body and connection piece integrated into one piece are in the same place, the front side of box body is equipped with the dop, the front side of lid be equipped with dop complex buckle, the left side wall of box body is equipped with the opening that extends to the diapire from the up end, the left side wall of lid is equipped with and is used for inserting intraoral extension piece, be equipped with two on the lower terminal surface of extension piece and link up the lead wire mouth of extension piece along left right direction. The box body and the box cover are integrally formed, so that the box cover is not easy to lose, and the box body and the box cover are convenient to fold together. When the LED box is used, the circuit board with the LED is placed in the box body, the power line is LED out from the opening of the box body, then the box cover is covered, the two lead ports are sleeved on the two power lines in a one-to-one correspondence mode, and the box body and the box cover are kept in a folding state through the buckle ring hooks on the clamping heads.

Preferably, a plurality of strip-shaped supporting blocks are arranged on the bottom wall of the box body and the top wall of the box cover, and the middle of each supporting block is sunken to form a disassembling opening. When the support block is used, the support block is fixed in a mode of bonding two ends of the support block, and the rod body is inserted into the disassembly port to pry when the support block is disassembled.

Preferably, the bottom wall of the box body is provided with a connecting pipe, the connecting pipe is communicated with the inner space of the box body, and the lower end of the connecting pipe is elastically connected with a pair of barbs. The fixing device can be fixed by hooking the barb when in use.

Preferably, a release-preventing lock for preventing the retaining ring from falling off from the clamping head is further arranged in the front side wall of the box body, the release-preventing lock comprises a lock tongue and a locking structure, the lock tongue is telescopically arranged on a clamping surface, matched with the retaining ring, of the clamping head in a penetrating mode, the locking structure comprises a top pin and a seesaw rod, the top pin is telescopically arranged on a clamping surface, matched with the retaining ring, of the clamping head in a penetrating mode, the seesaw rod is hinged in the front side wall of the box body, one end of the seesaw rod is abutted to the inner end of the lock tongue, the other end of the seesaw rod is abutted to the inner end of the top pin, a guide surface is arranged at the outer end of the top pin, matched with the retaining ring and used for guiding the top pin to. When the box cover is closed, the retaining ring firstly passes over the lock tongue and then pushes the two sides of the guide to enable the guide to contract, and when the ejector pin contracts, the stilt lever is driven to swing to press the lock tongue downwards, so that the lock tongue extends out to block the retaining ring, and the effect of preventing the retaining ring from falling off is achieved. When the buckle needs to be disengaged, the spring bolt is driven inwards to prevent the spring bolt from blocking the buckle, and then the buckle is taken down.

Preferably, the unlocking structure comprises a ferromagnet arranged at the inner end of the lock tongue, an electromagnet and an electromagnet control mechanism, the electromagnet control mechanism is used for driving the lock tongue to retract inwards, the electromagnet control mechanism comprises a liquid bag, an elastic sheet positioned in the liquid bag, a driving head for driving the elastic sheet in the liquid bag to deform, a first temperature sensor for detecting the internal temperature of the liquid bag, a second temperature sensor for detecting the external environment temperature of the liquid bag and a controller, supersaturated sodium acetate solution is filled in the liquid bag, when the temperature detected by the first temperature sensor is higher than the temperature detected by the second temperature sensor, the controller enables the electromagnet to be communicated through a power supply, and when the time for communicating the electromagnet with the power supply reaches a set value, the controller enables the electromagnet to be disconnected with the power supply. The process that this technical scheme unblanked does, press the driving head, the driving head extrudees the liquid bag and makes the shell fragment warp, the deformation of shell fragment triggers the crystallization of supersaturated sodium acetate solution and generates heat, the result that generates heat is for making the inside temperature of liquid bag be higher than outside temperature, this temperature information is detected and feeds back to the controller by first temperature sensor and second temperature sensor, the controller knows need fast, so the electro-magnet circular telegram is given to the controller, the electro-magnet is electrified and produces magnetic force and adsorb the spring bolt and the internal contraction, thereby lose the blocking effect to the buckle (also realized unblanking).

Preferably, the ferromagnetic body is spherical, and the spherical surface of the ferromagnetic body is hinged on the inner end surface of the lock tongue. The abrasion generated during driving is small.

Preferably, the latch is inclined in a state where an outer end thereof is drawn toward a front side wall of the case. The reliability when blocking the retaining ring is good.

Preferably, the box body is further provided with an inflatable sealing ring and an inflatable structure, the inflatable sealing ring is used for connecting the box body and the box cover in a sealing mode, the inflatable sealing ring is provided with an air release valve cock and an air inflation valve cock, the inflatable structure comprises a cylinder body arranged in the wall portion of the box body, a piston located in the cylinder body and a piston rod connected to the piston, the piston divides the cylinder body into a sealing cavity and an opening cavity, the air inlet end of the air inflation valve cock is located in the sealing cavity, the piston rod extends out of the outer surface of the box body, and the piston is provided with a one-way valve which opens towards the sealing cavity. When the box cover is not buckled, the inflatable sealing ring is in a flat state, the box cover is covered and then the piston is driven to reciprocate by repeatedly pressing the piston rod to inflate the inflatable sealing cavity by water, and the inflatable sealing cavity is inflated and inflated to expand so as to play a sealing role and improve the connection reliability of the box body and the box cover. When the box cover is opened, the air is firstly discharged through the air discharging valve and then opened. This technical scheme can enough make laborsaving box body and lid of foldeing, and sealed effect can be adjusted moreover.

Preferably, the piston rod comprises an inner section and an outer section, the inner section is arranged in the wall of the box body, one end of the inner section is connected with the piston, the other end of the inner section is connected with one end of the outer section in a threaded mode, and the other end of the outer section extends out of the outer surface of the box body. When the inflatable sealing ring is not inflated, the outer section is taken down to prevent interference on peripheral objects.

The invention has the following advantages: the box cover and the box body are not easy to lose after being separated; the power line is convenient to be led out.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a left side view schematically illustrating a first embodiment of the present invention.

Fig. 3 is a partial schematic view of a second embodiment of the invention.

In the figure: the box cover 1, a retaining ring 11, a supporting block 12, a detaching port 13, an extension piece 14, a lead port 15, a box body 2, a clamping head 21, a connecting pipe 22, a barb 23, an opening 24, a connecting piece 25, an inner cavity 26, an inflatable sealing ring 3, a deflation valve cock 31, an inflation valve cock 32, an inflation structure 4, a cylinder body 41, a piston 42, a sealing cavity 411, an opening cavity 412, a piston rod 43, an inner section 431, an outer section 432, a one-way valve 44, an anti-disengaging lock 8, a locking bolt 81, a locking structure 82, a knock pin 821, a guide surface 8211, a seesaw rod 822, an unlocking structure 83, a ferromagnetic body 831, an electromagnet 832, an electromagnet control mechanism 833, a liquid bag 8331, an elastic sheet 8332, a driving head 8333, a first temperature sensor 833, a second temperature sensor 8335 and a controller 8336.

Detailed Description

The invention is further described with reference to the following figures and examples.

First embodiment, referring to fig. 1, a housing for mounting a circuit board with an LED includes a box cover 1 and a box body 2. The box cover 1 and the box body 2 are both plastic pieces.

The bottom wall of the box body 2 is provided with a connecting pipe 22. The lower end of the connecting pipe 22 communicating with the inner space of the case 2 is elastically connected with a pair of barbs 23. The front side of the box body 2 is provided with a clamping head 21. The front side of the box cover 1 is provided with a retaining ring 11 matched with the clamping head. The snap ring 11 is hooked on the chuck 21 to fix the front sides of the box body 2 and the box cover 1 together. The bottom wall of the box body 2 and the top wall of the box cover 1 are both provided with a plurality of strip-shaped supporting blocks 12. The middle recess of the support block 12 forms a removal opening 13.

Referring to fig. 2, the left side wall of the case body 2 is provided with an opening 24 extending from the upper end face to the bottom wall. The left side wall of the box cover 1 is provided with an extension piece 14 for inserting into the opening. Two lead openings 15 penetrating the extension piece in the left-right direction are provided on the lower end surface of the extension piece 14.

The rear side of the box cover 1 and the rear side of the box body 2 are connected together by a connecting piece 25 which can be bent. The connecting piece 25 is a plastic piece. The box cover 1, the box body 2 and the connecting piece 25 are integrally formed together.

When the LED power supply box is used, the circuit board with the LED is placed in the box body 2, the power line is LED out from the opening 24, then the box cover is covered, the two lead ports 15 are sleeved on the two power lines in a one-to-one correspondence mode, and the box body and the box cover are kept in a closed state through the fastening ring hooks on the clamping heads.

The second embodiment is different from the first embodiment in that:

referring to fig. 3, the box body 2 is further provided with an inflatable sealing ring 3 for connecting the box body and the box cover together in a sealing manner and an inflatable structure 4 for inflating the inflatable sealing ring. The inflatable sealing ring 3 is provided with a deflation valve 31 and an inflation valve 32. The pneumatic structure 4 comprises a cylinder 41 arranged in a wall of the housing 2, a piston 42 located in the cylinder and a piston rod 43 connected to the piston. The piston 42 divides the cylinder into a sealed chamber 411 and an open chamber 412. The piston 42 is provided with a one-way valve 44 which opens into the sealed chamber. The inlet end of inflation valve 32 is located within sealed chamber 411. The piston rod 43 comprises an inner section 431 and an outer section 432. The inner section 431 is built into the wall of the box 2. The inner section 431 is threadedly coupled at one end to the piston 42 and at the other end to one end of the outer section 432. The other end of the outer section 432 protrudes beyond the outer surface of the case 2.

When the box cover is closed, the inflatable sealing ring 3 is in a shriveled state, so that the retaining ring can be easily hooked on the clamping head 21, then the outer section 432 is held to drive the piston 42 to reciprocate in the cylinder body 41, and therefore the inflatable sealing ring 3 is read through the inflatable inflating valve 32 to be inflated and expanded, and the box cover and the box body are tightly connected together in a sealing mode after the inflatable sealing ring 3 is inflated and expanded. The outer section 432 is then removed. When the box cover is opened, the air in the inflatable sealing ring 3 is discharged through the air discharging valve 31 so that the box cover can be easily opened.

Also included in this embodiment is an anti-slip lock 8. The anti-slip lock 8 includes a locking bolt 81, a locking structure 82 and an unlocking structure 83. The latch tongue 81 is telescopically inserted into the engaging surface of the chuck 21 engaged with the retaining ring. The latch 81 is inclined in a state where the outer end is closed toward the front side wall of the case 2. The locking structure 82 includes a top pin 821 and a teeter-totter 822. The knock pin 821 is telescopically inserted into a snap surface of the chuck 21 which is engaged with the snap ring. The spherical surface of the inner end of the latch 81 is hinged with a spherical ferromagnetic body 831. A teeter-totter lever 822 is hinged within the cavity 26 in the front side wall of the housing 2. One end of the seesaw 822 abuts on the ferromagnetic body 831. The other end of the seesaw 822 abuts against the inner end of the knock pin 821. The outer end of the knock pin 821 is provided with a guide surface 8211. The knock pin 821 is located between the latch tongue 81 and the front surface of the case body 2. The unlocking structure 83 includes a ferromagnetic body 831, an electromagnet 832, and an electromagnet control mechanism 833. Electromagnet control mechanism 833 includes fluid bag 8331, shell fragment 8332 that is located the fluid bag, drive head 8333, the first temperature sensor 8334 that detects the internal temperature of fluid bag, the second temperature sensor 8335 that detects the external ambient temperature of fluid bag and controller 8336. The liquid bag 8331 is filled with supersaturated sodium acetate solution.

The working process of the anti-disengagement lock 8 is as follows: in the initial state, the lock tongue is retracted in the chuck without interfering the buckle ring to be buckled on the chuck. When the buckle is buckled, the buckle passes over the latch tongue 81 and abuts on the guide surface 8211 to drive the top pin 821 to retract, the top pin 821 retracts to drive the seesaw lever 822 to swing, the seesaw lever 822 swings to press the latch tongue 81 to extend the latch tongue to block the direction in which the buckle falls, and the buckle cannot fall off the chuck 21.

When the buckle is to be taken down, the driving head 8333 is pressed, the driving head extrudes the liquid bag 8331 to enable the elastic sheet 8332 to deform, the elastic sheet deforms to generate disturbance to the supersaturated sodium acetate solution in the liquid bag, the supersaturated sodium acetate solution is crystallized after being disturbed to release heat to enable the temperature in the liquid bag to rise, the temperature in the liquid bag is enabled to be higher than the external temperature through the temperature rise, the detected temperature is fed back to the controller through the first temperature sensor and the second temperature sensor, the controller finds that the internal temperature of the liquid bag is higher than the external temperature by more than 1 ℃, the electromagnet 832 is communicated with a power supply to be electrified, after the electromagnet is electrified, the electromagnet generates adsorption to enable the lock tongue to shrink and lose the blocking effect on the buckle, and a user can open the buckle. When the time for connecting the electromagnet with the power supply reaches a set value, the controller disconnects the electromagnet from the power supply so that the spring bolt can extend out after the snap ring is buckled next time. In order to ensure that the supersaturated sodium acetate solution can be dissolved again after being crystallized, the invention is also provided with an electric heater for heating the liquid sac, and the liquid sac is heated once after the lock is opened once so as to ensure that the crystals of the supersaturated sodium acetate solution are dissolved again.

Claims

1. A shell for mounting a circuit board with an LED comprises a box cover and a box body, and is characterized in that the box cover and the box body are plastic parts, the rear side of the box cover and the rear side of the box body are connected together through a connecting sheet which can be bent by plastic, the box cover, the box body and the connecting sheet are integrally formed together, a clamping head is arranged on the front side of the box body, a clamping ring matched with the clamping head is arranged on the front side of the box cover, an opening extending from the upper end face to the bottom wall is arranged on the left side wall of the box body, an extension sheet inserted into the opening is arranged on the left side wall of the box cover, two lead ports penetrating through the extension sheet along the left-right direction are arranged on the lower end face of the extension sheet, a separation preventing lock for preventing the clamping ring from falling off from the clamping head is further arranged in the front side wall of the box body, the separation preventing lock comprises a lock tongue, a closing structure and an unlocking structure, and, the locking structure comprises a top pin which is telescopically arranged on a clamping surface of the clamping head matched with the snap ring in a penetrating way and a seesaw rod which is hinged in the front side wall of the box body, one end of the seesaw rod is abutted with the inner end of the lock tongue, the other end of the seesaw rod is abutted with the inner end of the top pin, the outer end of the top pin is provided with a guide surface which is matched with the snap ring to guide the top pin to lift, the top pin is positioned between the lock tongue and the front surface of the box body, the unlocking structure comprises a ferromagnetic body which is arranged at the inner end of the lock tongue, an electromagnet which adsorbs the ferromagnetic body to drive the lock tongue to retract, and an electromagnet control mechanism, the electromagnet control mechanism comprises a liquid bag, an elastic sheet which is positioned in the liquid bag, a driving head which drives the elastic sheet in the liquid bag to deform, a first temperature sensor which detects the internal temperature of the liquid bag, a second temperature sensor which detects the external environmental temperature of, the driving head is pressed to extrude the liquid bag to deform the elastic sheet, the elastic sheet deforms to generate disturbance on supersaturated sodium acetate solution in the liquid bag, the supersaturated sodium acetate solution is crystallized after being disturbed to release heat to enable the temperature in the liquid bag to rise, when the temperature detected by the first temperature sensor is higher than the temperature detected by the second temperature sensor, the controller enables the electromagnet to be communicated through a power supply, the electromagnet generates adsorption on a ferromagnetic body after being electrified to enable the bolt to shrink and lose the blocking effect on the retaining ring, the box body is further provided with an inflatable sealing ring and an inflating structure, the inflatable sealing ring is hermetically connected with the box body and the box cover, the inflatable sealing ring is provided with an air outlet valve and an air inlet valve, and the inflating structure comprises a cylinder body arranged in the wall portion of the box body, a piston arranged in the cylinder body and a piston rod connected to the piston, the piston divides the cylinder body into a sealing cavity and an opening cavity, the air inlet end of the inflating valve is positioned in the sealing cavity, and the piston rod extends out of the outer surface of the box body.

2. The case for mounting the LED circuit board according to claim 1, wherein a plurality of elongated support blocks are disposed on the bottom wall of the case body and the top wall of the case cover, and the middle of each support block is recessed to form a detachable opening.

3. The casing for mounting the LED circuit board according to claim 1 or 2, wherein the bottom wall of the casing is provided with a connecting pipe, the connecting pipe is communicated with the inner space of the casing, and the lower end of the connecting pipe is elastically connected with a pair of barbs.

4. The housing of claim 1 or 2, wherein the ferromagnetic member is spherical and is spherically hinged to the inner end surface of the latch.

5. The case for mounting an LED-equipped circuit board according to claim 1 or 2, wherein the latch is inclined in a state where an outer end thereof is closed toward a front side wall of the case body.

6. The housing with the LED circuit board is mounted to the claim 1, wherein the piston rod includes an inner section and an outer section, the inner section is embedded in the wall of the box body, one end of the inner section is connected to the piston, the other end of the inner section is connected to one end of the outer section in a threaded manner, and the other end of the outer section extends out of the outer surface of the box body.